Northbound I-35W from 66th Street in Richfield to I-94 in Minneapolis will close Sept. 5 through Sept. 8 as crews continue survey work on the other side of the freeway.

A full list of northbound I-35W ramp closures and detours will be announced in the coming days.

In addition to the survey work, crews will drill and take soil samples, inspect bridges and perform any needed repairs during each closure.

The state DOT said it is closing I-35W for two weekends to reduce the number of days needed to perform the work and will provide a safer work environment for survey and maintenance crews, as stretches of the I-35W work area have limited to no shoulder space.